The Shape of Things to Come / H. G. Wells
"The Shape of Things to Come is a work of science fiction by British writer H. G. Wells, published in 1933, which speculates on future events up to the year 2106.
A long economic slump causes a major war that leaves Europe devastated and threatened by plague. The nations with the strongest air-forces set up a benevolent dictatorship that paves the way for world peace by abolishing national divisions, enforcing the English language, promoting scientific learning and outlawing religion. The enlightened world-citizens are able to depose the dictators peacefully, and go on to breed a new race of super-talents, able to maintain a permanent utopia." (Wikipedia)